in my limited experience, I use a tuned arrow that is 650 grains with ~225 grains up front. I webelieve they were >21% foc (can't remember exactly). I use a BIG magnus 1 with bleeders (all blades KMEd to a mirrored finish) on 2 hogs (boars from 150-175lbs) and this arrow set up out of a 59# '60 bear kodiak and a 55# sovereign archery ballistick. Shot throug 1 hog (liver) and recovered it, and the other hog shot through mud, hair, thick shield and arrow was lodged in opposite side of rib cage.